Engine



Patented June 24, 1930 ROSS ZUMWALT, F WEST BADEN,.

ENGINE Application filed June 22,

This invention relates to rotary steam engines, and contemplates a construction and arrangement of parts wherein the sliding abutment for the rotor and the valve actuated mechanism to control the inlet of steam to the rotor, are both actuated in a novel manner and from opposite ends of-the shaft of the rotor, the invention residing in the construction, combination and arrangement of parts as claimed. I v

In the drawings forming part of this application like numerals of reference indicate similar parts in the several views and wherein: v

Figure 1 is a side elevation of the engine. Figure 2 is an end elevation.

Figure 3 is a top plan View. 7 Figure 4: is a fragmentary sectional view showing the steam inlet pipe and valve 20 therefor. I

Figure 5 is a view of the engine with one of the slide plates removed showing the rotor.

Figure 6 is a EGCtlOIlELlVlGW on line 6-6 of Figure 1.

2 Figure 7' is a sectional view on line 77 of.

, Figure 5. i i

Figure 8 is a sectional View on line 8-8 of Figure-5. g I Figure 9 is a view in elevation of oneof 30 the disks having the cam-shaped groove therein. c

The engine forming the subject matter of the present invention embodies spaced side plates 10 and 11, which are of relatively different thicknesses, and both supported by a suitable base 12. The plates 10 and 11 are susceptible of adjustment toward and away from each other by means of adjusting bolts 13 to maintain a proper fit between these plates and the rotor 14. The rotor is mounted upon a shaft 15 journaled on the plates 10 and 11, and the means for operating the abutment for the rotor and also the means for controlling the operation of the fuelinlet valve are controlled from the shaft 15 in a manner to be hereinafter described. The rotor is provided with spring pressed packing 16 which be'arsagainst the opposed plates 10 and 11,

and as illustrated in Figure 4, the rotor communicates with the steam supply pipe 17.

1928; Serial No. 287,506..

PATENT OFF-ICE; I

This communication is controlled by a valve 1 18. The rotor is provided with: the usual semicircular opening 19, whilefthe plate 10 is provided with a transverse here: or passage 20 in which the sliding abutment 211 operates. Fhe. abutment is also. provided with spring influenced; packing as clearly illustratedinFigurefi: j

'Nlounted on the opposed ends:

ported, on one end of an arm 26, the other end of the arm being pivotally mounted on the plate: 10; Pivotied on thezpin is: a link 615th; shaft 15 are disks 22: and 23'-'respective1y,xthe

27,.o'ne: end of which is; connected witlia bell crank lever 28 fulcrumed' as. at. 29,,andthis lever 28 isv also connected. with the: link. 30 whichconn'ects; the lever 28 with the; sliding abutment 21. @onsequentl-y as the shaft 15 rotates, similar movement is impartedto the disk 22, and the pin 25 riding; inthe cam; v

shaped groove 2% operates the. bell crank lever 28 to: c'ontrolthe movements of theaslid ing abutment to. its active and inactive positions aswillibezreadilyunderstood.

' The disk: 23 isprovided" with a cam-shaped.

groove 31 simila-itto thegroove2d 'ofthedisk 7 1 22, and operating in the groovefi l is' a pin 32 which is supported by one end of adinkfifi, the other end of which ispivoted onthe-plate 11 A link 34:is pivotedonthe pin 32 and has its other end.- eccentricaill-yconnected with a wheel 35 carried bya shaft 3.6j01i1111tl8d in 'suitablebearingsa on the plates: 10 and; 11;. Projecting from this shaft is an extension 37 which isconnected; with the adjacent U- ing fromthe valve18. -By reasonof this-cone strujctionand arrangement of parts it is manifest that as the: disk 32 is rotated with the shaft '15 movement will be imparted to the shaft 36 which is associated with the valve stem 18 by the universal oint ust described, and'the valve 18 is therefore opened 1 and closed at the proper time to admit steam to 5 the rotor 14. This steam is exhausted through the exhaust port-41 during the rotation of the. rotor as will be readily understood. c y i c While it is believed that from the foregoting description the nature and advantages of the invention will be readily understood, I desire to have'it known that I do not limit myself to .what is herein shown and described and that such changes'may be resorted t.) I

' when desired as'fall within the scope of what is claimed. 1 'What is claimed is: 1 a

1. An engine of the character described 7 comprising spaced plates, a shaft journaled th'ereonjarotor carried by the shaft and opcrating between said plates, means for ad justing said plates toward and away from each other and said r0tor,-a'sliding abutment for said rotor, means for operating said abutment, an inlet pipe communicating with the rotor, a valve controlling said communication, a disk carried by said shaft, asecond shaftrotatably mounted on the upper edges of said'plates and parallel with the rotor '30 shaft, an extension rising from'the second -mentionedshaft, an extension projecting from the stem of the valv'e, a coupling member having U-shaped extremities arranged in right angular relation to each other and piv-,

otally connected with said extensions, and

means operated from said disk to rotate the 1 second mentioned shaftincident to the rotation of said rotor. e l

2. :An: engine of the character described ig jcomprising spaced plates, a shaft journaled thereon, a rot-or carriedby the shaft and'opcrating between said plates, a sliding abutm'ent for said rotor, means for operating said abutment, an inlet pipe communicating wlth the rotor,1a valve controlling said communication, a disk carried by said shaftand having a cam shaped groove, a secondshaft rotatably mounted on the upper edges of said plates and parallel with the rotor shaft, an

}'50 extension rising from the second ,name'd shaft, an extension projecting from the stem of the valve, a coupling niember having U- shaped extremities'arrangedin right angular relation to each other and pivo'tallyconnected with said 'extensions,'a link pivoted on one of said plates, a pin projecting fromone end of the link and operating in the groove of 1 said disk, awheel carried by one end of the second named shaft, and a link pivoted on 1 '60 said pin and eccentrically connected with said wheel, whereby the said shaft is rotated incident to'theoperation of said rotor." j

i In testimony wher'eofI aiiix my signature.

: BOSS ZUMWll-LT. 

